Ambient Creations did a great job creating Observer for the community.
Teenage Mutant Ninja Turtles
Cowabunga! The Teenage Mutant Ninja Turtles have found their way into Minecraft in this radical DLC. Play as any of the four Turtles to take down gnarly enemies, save New York from Shredder and eat all the pizza! Includes official TMNT skins.